The SC - 928 is a Memory error problem.The machine detects a discrepancy inthe write/read data during its write/readtest (done at power off/on and atrecovery from low power or night/offmode). To try to reset this code -- Turn the MAIN power switch off, wait about 30 secs. then turn switch back On.

Possible causes:• Memory defective• BICU defective• Poor connection between BICU andmemoryThe cheapest repair would be to replace the memory. It is rare the the connections came apart unless some one was in the back of the machine for some reason.

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Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Technician (only for users in the US for now) and get all the help you need. Goodluck!

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Hi ya,
k, not sure if you have all drivers n stuff so maybe you'll get what you need from here, click or copy link, hope this helps, n g'luck, paul. http://support.ricoh.com/bb/html/dr_ut_e/nrg/model/x2015_18/x2015_18en.htm

Memory error 928. The machine detects a discrepancy in the write/read data during its write/read test (done at power off/on and at recovery from low power or night/off mode). • Memory defective • BICU defective • Poor connection between BICU and memory

Fusing thermistor deformed or out of position ? Fusing lamp harness loose, broken, defective ? Fusing unit defective ? After servicing the machine to solve the problem, the service technician must execute a "Fuser SC Reset". Otherwise, the machine will continue to issue this SC code and cannot be operated.- Carl